Base for motors



J. J. BYRNES BASE FOR MOTGRS May 6, 1952- Filed Oct; 13, 1948 l/forng/s Patented May 6, 1952 UNITED STATES PATENT OFFICE BASE FOR MOTORS John J. 'Byrnes, Newark, N. J.

Application October 13, 1948, Serial No. 54,269

4 Claims. I 1

This invention relates to bases for electric motors, and has as its primary object the provision of a base adapted for the support of a motor and provided with a plurality of rotatable discs with radially extending bolt receiving slots whereby the motor carrying base may be bolted to flat supports or platforms having holes spaced apart at various distances for the reception of motor attaching screws or bolts.

In most oil burner installations for furnaces a flat platform or support is mounted on the floor in front of the heater for the support of the fan or blower, the direct-connected electric motor on one side of the blower and'the directconnected fuel pump on the other side of the blower. It frequently happens that the electric motor of oil burner and similar installations burns out or is damaged to such an extent that it must be sent to the shop for repairs or rebuilding. Such motors vary greatly in their mountings on or attachment to the platforms or supports and the latter have many different spacings of bolt holes. It is impossible for the service man to carry with him motors and motor carrying bases having arrangements of bolt holes which correspond with the variously spaced bolt holes in the platforms of such installations. It is therefore an object of my invention to provide such a motor carrying base with a simple and practical means which permits it to be bolted to platforms or supports having variously spaced bolt holes, so that the repair man will be able to substitute for the damaged motor a temporary motor, without carrying with him an unduly large amount of equipment.

Still another object of the invention is the provision of a base of this character which is sturdy and durable in construction, reliable and eiiicient in operation, and relatively simple and inexpensive to manufacture, assemble and utilize.

Other objects will in part be obvious and in part be pointed out as the description of the invention proceeds and shown in the accompanying drawing wherein there are disclosed preferred embodiments of the inventive concept.

In the drawing:

Figure 1 is a bottom plan view of one form of the device embodying features of the instant inventive concept.

Figure 2 is an enlarged sectional view taken substantially along the line 2-2 of Figure 1 substantially along the line 4-4 of Figure 3, and

Figure .5 is a side elevational view of the device showing its relation to a motor and mounting bolts, the motor and bolts being shown in dotted lines.

Similar reference characters refer to similar parts throughout the several views of the drawing.

Referring now particularly to Figure 1 there is indicated at 10 a base plate, having transversely disposed extending portions II, from the extremities of each of which vertical supports [2 extend upwardly;

As best shown in Figure 5 members I2 are provided at their upper extremities with lugs 13, adapted to engage in suitable apertures in split curved bands I4, bands I4 being provided with upstanding lugs [5, adapted to accommodate bolts 16, for the purpose of securing the extremities ll of an electric motor [8 in position. The mounting means for the motor heretofore described are of conventional design, and form no part of the instant invention.

Plate [0 is provided with four circular vertical openings or bores 20 rectangularly spaced therein, in each of which is seated a disc 2|, provided at its top with a peripheral flange 22 (see Figure 2) adapted to seat on the upper surface of the plate [0. Each disc 21 is provided with a radially extending slot 23, extending from the center thereof to a position closely adjacent the periphery of the disc. Each of the discs is rotatably mounted and substantially fills its opening or bore 20 but does not project below the bottom face of the plate [0 since the latter is adapted to rest upon a flat supporting surface such as the platform of an oil burner installation. The cylindrical edges of the discs rotatably engage the cylindrical walls of the bores 20 and are retained therein by the flanges 22 and by outwardly extending projections on the lower portions of the discs, which projections are adapted to enter and rotate inannular recesses formed in the bottom face of the plate Ill around the walls of the bores 20. As shown in Figs. 1 and 2 each of these annular recesses may be formed by a rabbet or chamfer around the opening to provide an outwardly and downwardly inclined shoulder as at 23 The said projecting portions of the discs may be formed by swaging the lower edges of the disks outwardly into the recesses so as to underlie the shoulders 23*. Such swaged portion need not be continuous, and I preferably merely punch out projections 24 at spaced intervals around the edges of the discs as shown in Fig. 1. These projections slide in the recesses against the shoulders 23 to permit the discs to be rotated so that some portions of their radial slots 23 may be brought into registration with the bolt holes in the platform or support to permit screws or bolts such as shown at 25 in Fig. 5 to be passed through the slots 23 and into the holes in the platform or support (not shown). Due to the radial disposition of the slots and the rotatability of the discs, the bolts may be used in any of the variously spaced holes in the supports. It will be seen that since the discs do not project below the plate 50, the use of the discs in the latter does not change the height of the armature shaft of the electric motor relative to the platform or support on which the plate rests, and hence the shaft of a temporary motor will be axially alined with shafts of the fan or blower of the oil burner installation. It will be further noted that the use of the device requires no extra bolts or tapped holes, that the device is adaptable to different mounting holes by simply turning the discs, and that it is simple, inexpensive, strong and durable.

Figures 3 and 4 disclose a modified form of construction wherein a base plate It is provided with a plurality of cylindrical walled openings or bores 20, each of which is provided in its wall with an intermediate annular recess or groove 26. In each of bores 29 is seated a disc 2i provided with a flange 22 corresponding to the previously described flange 22. Likewise a radially extending slot 23 is provided in each disc 2!. Extending across the underside of each disc 21 is a strip or plate 21, secured in position as by means of screws 28 and provided with an arcuate cut-away portion 29 to accommodate the extremity of the slot 23. The ends of strip 2'! extend into the groove 26, and are of arcuate configuration as indicated at 33 in such manner as to secure the disc in position in its associated bore, and permit free rotation thereof. It will be understood that the ends 33 of the strip 2'! are sprung into the groove 26 and the strip then fastened to the disc by the screws 28. Obviously the construction disclosed in Figures 3 and 4 is adapted to be utilized in the manner previously discussed in connection with the previously described form.

From the foregoing it will now be seen that there is herein provided an improved mounting plate for motors, which accomplishes all the objects of this invention, and has many advantages over prior devices.

As various embodiments may be made of this inventive concept, and as many modifications may be made in the embodiments hereinbefore shown and described, it is to be understood that all matter herein is to be interpreted merely as illustrative and not in a limiting sense.

I claim:

1. A motor mounting device of the type having spaced uprights for connection to the end portions of an electric motor to support the latter, said device comprising a base plate to rest on a stationary flat support having spaced holes to receive fastening screws or bolts, said plate being formed with a plurality of spaced vertical bores having walls of cylindrical shape, a plurality of discs disposed in said bores and having their bottom faces positioned flush with or above the-bottom face of said plate, and means for rotatably retaining said discs in said bores, said discs having radially extending slots to receive fastening screws or bolts for engagement with spaced openings in a support on which said plate rests.

2. A motor mounting device of the type having spaced uprights for connection to the end portions of an electric motor to support the latter, said device comprising a base plate to rest on a stationary flat support having spaced holes to receive fastening screws or bolts, said plate being formed with a plurality of spaced vertical bores having walls of cylindrical shape, said cylindrical walls having annular recesses, a plurality of discs rotatably disposed in said bores and having their bottom faces positioned flush with or above the bottom face of said plate, outwardly projecting flanges on the upper portions of said discs to rotatably contact with the upper face of said plate and means on said discs to project into and rotate in said annular recesses, said discs having radially extending slots to receive fastening screws or bolts for engagement with spaced openings in a support on which said plate rests.

3. The structure of claim 2 in which the lower portions of the walls of said bores are outwardly and downwardly chamfered to provide said annular recesses, and in which said means are spaced detents stamped outwardly around the lower edges of said discs into said recesses for sliding engagement with said shoulders.

4. The structure of claim 2 in which said annular recesses in the walls of said bores are grooves spaced upwardly from the lower ends of said walls and in which said means comprises fiat strips detachably secured to the bottom faces of said discs and having their ends rotatably received in said grooves.

JOHN J. BYRNES.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 854,984 Corbett May 28, 1907 1,975,291 Ritter Oct. 2, 1934 2,209,477 Reibel July 30, 1940 2,456,039 Abramson Dec. 14, 1948 

